Identifier: sciencerecordcom1874beac (find matches)
Title: The Science record; a compendium of scientific progress and discovery
Year: 1872 (1870s)
Authors: Beach, Alfred Ely, 1826-1896
Subjects: Technology Industrial arts
Publisher: New York, Munn
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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is nearer to the earth, and comes within 30,000,000miles of us, but travels between the earth and the sun, sothat her bright face is turned to that luminary and herdark hemisphere toward us. Hence Mars is the best fittedfor examination. In regarding the planet through a powerful telescope, itis at once observable that the poles are marked by bril-liantly white zones which, it is believed, are caused by de-posits of snow and ice. These arctic regions appear toextend during the Martial winter to parallel 450 of latitude,or as if the ice of North-America, in our winter, shouldreach down as far as the northern part of New-York State.We have said that Mars, is, ruddy,^n4 the fact is easily dis-cernible by the naked eye. Aided t*y the telescope, how-ever, the surface appears to be far from uniformly red.The color is, confined to particular spots or regions, theintermediate parts being of a greenish Hue. Observations§xtending over long periods have demonstrated that the 55+ SCIENCE RECORD.
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ASTRONOMY. 555 relative position of these divisions has never changed,hence they are not accidental phenomena. Thus, beingconsidered as physical peculiarities, they have been madethe subject of close study by almost all eminent astrono-mers. For reasons which we shall explain hereafter, thered portions of the planet have been considered as landand the green regions as water, and their appearance hasbeen carefully mapped. We give herewith a map, constructed by Mr. R. A. Proc-tor from a number of drawings, in which the various seasand continents are marked with the names of noted astro-nomers, by which they are distinguished. It will be ob-served that the seas seen are all land-locked—true medi-terraneans—and communicate with each other only by nar-row straits. The most remarkable features are the greatequatorial zone of continents—of which there are four,namely, Herschel, Dawes, Madler, and Secchi—and thepeculiar forms of the bell-shaped seas in the first of thesegrand division

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